How to chat and play on the Wii!
You must have:
Either A mic compatible with your computer and Output Mics (Simply your standard speakers

or A Headset compatible w/ your computer. (Yes both the PS#/PS@ and 360 Headsets work)
AND
an IM client (MSN, YAHOO, AIM, GTALK) that both users have
Than:
CHAT THROUGH MIC!
on msn It's Call user (and yahoo too)
not sure on AIM
I can only do it on MSN/Yahoo, not AIm, cause I use a browser client for AIM (aka aim express, etc.)
If you have any trouble just ask.
We played GHWT and SSBB, both using the Mic/Speaker combo, and it worked out fine.